Working with the perl SDK and attempting to determine the actual size of each snapshot in a given volume. Unfortunately, the SDK is reporting wildly varying sizes in comparison with CLI.
Export from CLI:
FILERNAME::> volume snapshot show -volume *********
---Blocks---
Vserver Volume Snapshot Size Total% Used%
-------- -------- ------------------------------------- -------- ------ -----
*********_01
********_dv01
weekly.2016-07-31_0015 118.2GB 1% 4%
weekly.2016-08-07_0015 33.94GB 0% 1%
Export on the exact same snapshots via the SDK:
Snapshot name: weekly.2016-07-31_0015
AFS used: n/a
Compression savings: n/a
Cumulative percent of total blocks: 3
Cumulative percent of used blocks: 11
Cumulative total size: 383158032
Dedup savings: n/a
Percentage of total blocks: 1
Percentage of used blocks: 4
Total size: 123914508
vbn0-savings:
----------
Snapshot name: weekly.2016-08-07_0015
AFS used: n/a
Compression savings: n/a
Cumulative percent of total blocks: 2
Cumulative percent of used blocks: 8
Cumulative total size: 259243524
Dedup savings: n/a
Percentage of total blocks: n/a
Percentage of used blocks: 2
Total size: 62664036
vbn0-savings:
The first snapshot is very, very close in the "total" size column. But the second snapshot is dramatically different.
Excerpt from code:
my $xi = new NaElement('desired-attributes');
$snap_iterator->child_add($xi);
my $xi1 = new NaElement('snapshot-info');
$xi->child_add($xi1);
$xi1->child_add_string('afs-used','afs-used');
$xi1->child_add_string('compress-savings','compress-savings');
$xi1->child_add_string('cumulative-percentage-of-total-blocks','cumulative-percentage-of-total-blocks');
$xi1->child_add_string('cumulative-percentage-of-used-blocks','cumulative-percentage-of-used-blocks');
$xi1->child_add_string('cumulative-total','cumulative-total');
$xi1->child_add_string('dedup-savings','dedup-savings');
$xi1->child_add_string('name','name');
$xi1->child_add_string('percentage-of-total-blocks','percentage-of-total-blocks');
$xi1->child_add_string('percentage-of-used-blocks','percentage-of-used-blocks');
$xi1->child_add_string('total','total');
$xi1->child_add_string('vbn0-savings ','vbn0-savings');
$xi1->child_add_string('volume','volume');
$xi1->child_add_string('access-time','access-time');
....
if ($vol_name eq "SPECIFIC_NAME_HERE") {
unless(grep(/$vol_name/, @snapmirrors)){
my $afs_used = "n/a";
my $comp_savings = "n/a";
my $cumulative_perc_total_blocks = "n/a";
my $cumulative_perc_used_blocks = "n/a";
my $cumulative_total = "n/a";
my $dedup_savings = "n/a";
my $snap_name = $snap->child_get_string("name");
my $perc_total_blocks = "n/a";
my $perc_used_blocks = "n/a";
my $snap_size = $snap->child_get_string("total");
my $vbn0_savings = "";
if ($snap->child_get_string("compress-savings")) {
$comp_savings = $snap->child_get_string("compress-savings");
}
if ($snap->child_get_string("dedup-savings")) {
$dedup_savings = $snap->child_get_string("dedup-savings");
}
if ($snap->child_get_string("vbn0-savings")) {
$vbn0_savings = $snap->child_get_string("vbn0-savings");
}
if ($snap->child_get_string("cumulative-percentage-of-used-blocks")) {
$cumulative_perc_used_blocks = $snap->child_get_string("cumulative-percentage-of-used-blocks");
}
if ($snap->child_get_string("cumulative-percentage-of-total-blocks")) {
$cumulative_perc_total_blocks = $snap->child_get_string("cumulative-percentage-of-total-blocks");
}
if ($snap->child_get_string("percentage-of-total-blocks")) {
$perc_total_blocks = $snap->child_get_string("percentage-of-total-blocks");
}
if ($snap->child_get_string("percentage-of-used-blocks")) {
$perc_used_blocks = $snap->child_get_string("percentage-of-used-blocks");
}
if ($snap->child_get_string("cumulative-total")) {
$cumulative_total = $snap->child_get_string("cumulative-total");
}
print "Snapshot name: ".$snap_name."\r\n";
print "AFS used: ".$afs_used."\r\n";
print "Compression savings: ".$comp_savings."\r\n";
print "Cumulative percent of total blocks: ".$cumulative_perc_total_blocks."\r\n";
print "Cumulative percent of used blocks: ".$cumulative_perc_used_blocks."\r\n";
print "Cumulative total size: ".$cumulative_total."\r\n";
print "Dedup savings: ".$dedup_savings."\r\n";
print "Percentage of total blocks: ".$perc_total_blocks."\r\n";
print "Percentage of used blocks: ".$perc_used_blocks."\r\n";
print "Total size: ".$snap_size."\r\n";
print "vbn0-savings: ".$vbn0_savings."\r\n";
print "----------\r\n";
Okay, so I obviously didn't include all of the code, but I think that's enough to get the gist. So, is this a bug or did I just miss something obvious?
